中国科学院机构知识库网格系统: 检索

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	Edge effect removal in Fourier ptychographic microscopy via periodic plus smooth image decomposition 期刊论文 OAI收割 OPTICS AND LASERS IN ENGINEERING, 2023, 卷号: 162 作者: Pan, An; Wang, Aiye; Zheng, Junfu; Gao, Yuting; Ma, Caiwen \| 收藏 \| 浏览/下载：53/0 \| 提交时间：2023/02/06 Fourier ptychographic microscopy Computational optical imaging Edge effect Fast Fourier transform
	Motion Feature Aggregation for Video-Based Person Re-Identification 期刊论文 OAI收割 IEEE TRANSACTIONS ON IMAGE PROCESSING, 2022, 卷号: 31, 页码: 3908-3919 作者: Gu, Xinqian; Chang, Hong \| 收藏 \| 浏览/下载：36/0 \| 提交时间：2022/12/07 Feature extraction Optical imaging Computational modeling Spatiotemporal phenomena Data mining Training Tracking Video-based person re-identification temporal information modeling motion feature extraction
	Experimental research on wave-front coded imaging technique applied to large aperture space-borne optical camera 会议论文 OAI收割 Nantong, PEOPLES R CHINA, 2021-10-10 作者: Zhao Hui; Mi Jiao; Li Chuang; Zou Gangyi; Fan Xuewu \| 收藏 \| 浏览/下载：30/0 \| 提交时间：2022/04/06 computational imaging wave-front coding space-borne optical camera
	Temporal-Spatial Mapping for Action Recognition 期刊论文 OAI收割 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2020, 卷号: 30, 期号: 3, 页码: 748-759 作者: Song, Xiaolin; Lan, Cuiling; Zeng, Wenjun; Xing, Junliang; Sun, Xiaoyan \| 收藏 \| 浏览/下载：49/0 \| 提交时间：2020/06/02 Two dimensional displays Three-dimensional displays Feature extraction Optical imaging Computational modeling Streaming media Kernel Temporal-spatial mapping (TSM) action recognition deep learning
	A nonlocal filter for local denoising using the Wigner transform 期刊论文 OAI收割 Optics and Lasers in Engineering, 2019, 卷号: 122, 页码: 105-112 作者: Chu, Junqiu; Ma, Haotong; Ren, Ge; Qi, Bo \| 收藏 \| 浏览/下载：23/0 \| 提交时间：2021/05/06 Image process Computational optical imaging Wigner transform Optical field imaging Local denoising
	Linear space-variant optical cryptosystem via Fourier ptychography 会议论文 OAI收割 San Francisco, CA, United states, 2019-02-02 作者: Pan, An; Wen, Kai; Yao, Baoli \| 收藏 \| 浏览/下载：59/0 \| 提交时间：2019/07/08 Fourier optics and signal processing Computational imaging Pattern recognition optical security and encryption Fourier ptychography
	Design of monocentric wide field-of-view and high-resolution computational imaging system 期刊论文 OAI收割 Acta Physica Sinica, 2019, 卷号: 68, 期号: 8, 页码: 10 作者: F.Liu; Y.Z.Wei; P.L.Han; J.W.Liu; X.P.Shao \| 收藏 \| 浏览/下载：48/0 \| 提交时间：2020/08/24 wide field of view and high-resolution imaging system,computational,imaging,optical system design,multi-scale imaging,Physics
	Panoramic aerial camera image motion measurement using a hybrid system (EI CONFERENCE) 会议论文 OAI收割 2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010, July 9, 2010 - July 11, 2010, Chengdu, China 作者: Jia P. 收藏 \| 浏览/下载：28/0 \| 提交时间：2013/03/25 Image motion compensation is significantly important for aerial camera photograph. To execute the compensation we must determine the image motion exactly. This paper proposes a method of real-time image motion measurement for panoramic aerial cameras based on image processing using a hybrid system. Two cameras are simultaneously used in the hybrid system. One main linear CCD for imaging while the other auxiliary low resolution high frame rate area CCD for determining the image motion based on 2D spatial correlation. The demanding computational requirements for the real-time 2D spatial correlation are covered by a joint transform optical correlator. Simulation test results show that the accuracy is improved and the measurement error is within 0.2 pixels for input images with SNR=1 dB. 2010 IEEE.
	The geometric distortions correction of uncooled large-sized relative aperture infrared imaging system (EI CONFERENCE) 会议论文 OAI收割 Infrared Components and their Applications, November 8, 2004 - November 11, 2004, Beijing, China 作者: Sun Q. 收藏 \| 浏览/下载：22/0 \| 提交时间：2013/03/25 The geometric distortion of infrared image which was created by the large-sized relative aperture optical system. It could be corrected by the digital image processing technology. The magnitude of distortion would be enlarged quickly with the enlargement of relative aperture. Though the distortion could not impact on the articulation of the image it would affect geometric location precision of the image directly. In this paper the distortion correction of uncooled large-sized relative aperture infrared imaging system was discussed and the mathematical model of distortion correction was established. A algorithm of digital image processing was presented and applied based on control points by combining polynomial warping and space variant linear image interpolation. The method of polynomial warping was used to establish the locality relationship between the original image and the distortion ones. The space-variant linear image interpolation provided an efficient way to rebuild the frame of images. The computational costs of the proposed approach are very little and the precision is almost as high as the method of bicubic interpolation when compared to those of state-of-the-art nonlinear interpolation operators.